Using Google Translate (don't trust me to get it correct)
Do not Drive Today
If you visit Mexico City and the metropolitan area, you have to meet Hoy No Circula Program, which operates in the Federal District and 18 municipalities of the State of Mexico, Monday to Saturday from 05:00 to 22:00 hours, and prohibiting the use of vehicles according to the latest issue of your vehicle plate.'
Also, from Monday to Friday from 05:00 to 11:00 hours if your plates are foreign or foreign: If your plate NO NUMBERS USA it is considered as termination 9, 0 or permits and therefore, your vehicle does not circulate on Fridays (blue) and the 5th. Saturday of each month.
Do not forget that in the State of Mexico, the Hoy No Circula work only in 18 municipalities:
1. Atizapan
2. Chicoloapan
3. coacalco de berriozábal
4. Cuautitlan Izcalli
5. Cuautitlan Mexico
6. Chalco
7. Chimalhuacán
8. Ecatepec
9. Huixquilucan
10. Ixtapaluca
11. La Paz
12. Naucalpan
13. Nezahualcoyotl
14. Nicolas Romero
15. Tlalnepantla de Baz
16. Tecámac
17. Tultitlan
18. Valle de Chalco Solidaridad
Failure to comply with this requirement will have to pay a fine or even your vehicle can be brought to the yard. " Avoid setbacks travelers better informed!
For further guidance call 1 877 210 9469 from the USA or from Mexico 01 800 201 8542, both lines are free.